Night bird sound? (ID help)

[Noah Comet]

Learned list,

A colleague captured this audio last night, in Anne Arundel County. I'm at a loss: begging call from a juvenile bird, perhaps? (Maybe not a bird at all?)

Audio file link

Note that I've cleaned up the audio and edited the file to shorten it: what you'll hear are three distinct calls back-to-back: in actuality there was about a 5-to-10-second gap between each of those calls. They said it sounded like it was coming from up in a tree. My birding audio apps are coming up empty, but that could be an audio quality issue.

One of those moments when I wish I were a better by-ear birder!

Thanks,

Noah

[Noah Comet]

Mystery solved---Fledgling Barred Owls! Thanks, all!

https://youtu.be/nFZQheIe-Ww   (skip to 0:25)